Home / 21,198.04-29,253.74-11,638.31

Finding the Fourth Proportional to 21,198.04, 29,253.74 and 11,638.31

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Solution

The fourth proportional to 21,198.04, 29,253.74 and 11,638.31 is: 16,061.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,198.04 : 29,253.74 = 11,638.31 : x
  2. Step 2: Convert to fraction form
    21,198.04/29,253.74 = 11,638.31/x
  3. Step 3: Cross multiply
    21,198.04x = 29,253.74 × 11,638.31
  4. Step 4: Simplify right side
    21,198.04x = 340,463,890.32
  5. Step 5: Solve for x
    x = 340,463,890.32/21,198.04
  6. Step 6: Final answer
    x = 16,061.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.